/* Internal-page prototypes: preserves the homepage visual language. */
:root{--ink:#202436;--muted:#626a7b;--accent:#4349a5;--accent-dark:#303766;--line:#dfe2ec;--surface:#f5f6fa;--white:#fff}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;font:16px/1.55 Arial,Helvetica,sans-serif;color:var(--ink)}button,input,select,textarea{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #9195ef;outline-offset:3px}.wrap{max-width:1190px;margin:auto;padding-inline:28px}.proto{background:#ececf5;color:#50566b;font-size:12px;padding:8px 0}.proto .wrap{display:flex;justify-content:space-between;gap:14px}.proto b{letter-spacing:.08em}.site-head{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:9}.head{min-height:82px;display:flex;align-items:center;gap:22px}.brand{display:flex;gap:10px;align-items:center;flex-shrink:0;font-size:14px;line-height:1.2}.brand strong{display:block;font-size:18px;letter-spacing:.12em}.mark{width:42px;height:45px;border-radius:10px 10px 10px 2px;display:grid;place-items:center;background:var(--accent);color:#fff;font-size:25px}.site-nav{display:flex;align-items:center;gap:20px;margin-left:auto}.site-nav a{font-size:14px}.site-nav a[aria-current=page]{color:var(--accent);font-weight:700}.head-account{border:1px solid var(--line);padding:10px 16px;border-radius:8px;font-size:14px;font-weight:700;white-space:nowrap}.menu-button{display:none;background:none;border:0;font-size:26px}.crumb{font-size:13px;color:var(--muted);padding-block:24px}.crumb a{color:var(--accent)}.crumb span{margin:0 8px;color:#a8acba}.eyebrow{font-size:12px;letter-spacing:.1em;color:var(--accent);font-weight:700;text-transform:uppercase;margin:0 0 12px}.page-head{margin-bottom:30px}.page-head h1,.detail h1,.auth-head h1{font-size:clamp(32px,4vw,46px);line-height:1.15;letter-spacing:-.035em;margin:0 0 15px}.lead{font-size:18px;color:#4f586d;max-width:760px;margin:0 0 20px}.pill{display:inline-block;background:#eef0fb;color:#4248a0;border-radius:99px;padding:5px 11px;font-size:12px;font-weight:700}.pill.open{background:#e9f4ed;color:#245a3c}.pill.neutral{background:#eef0f4;color:#566070}.button{display:inline-flex;align-items:center;justify-content:center;gap:10px;background:var(--accent);color:#fff;border:1px solid var(--accent);border-radius:8px;padding:12px 19px;font-size:14px;font-weight:700;line-height:1.35}.button:hover{background:#303782}.button.outline{color:var(--accent);background:#fff}.button.outline:hover{background:#f3f3fd}.button.tertiary{border-color:var(--line);background:#fff;color:var(--ink)}.button[disabled]{opacity:.55;cursor:not-allowed}.button-row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}.text-link{color:var(--accent);font-size:14px;font-weight:700}.text-link:hover,.site-nav a:hover{color:#303782;text-decoration:underline}.muted{color:var(--muted)}.small{font-size:13px}.caption{font-size:13px;color:var(--muted);margin:10px 0}.page-section{padding-bottom:65px}.shell{display:grid;grid-template-columns:245px minmax(0,1fr);gap:36px}.sidebar{align-self:start;border:1px solid var(--line);border-radius:12px;padding:18px;background:#fff}.sidebar h2{font-size:16px;margin:0 0 14px}.field{display:grid;gap:7px;margin:0 0 18px}.field label,.field>span{font-weight:600;font-size:14px}.field input,.field select,.field textarea{border:1px solid #cfd3df;border-radius:7px;background:#fff;color:var(--ink);padding:11px 12px;min-height:44px;width:100%}.field textarea{min-height:110px;resize:vertical}.field input[type=checkbox]{min-height:0;width:18px;height:18px;padding:0;flex:0 0 18px}.check{display:flex;align-items:flex-start;gap:10px;font-size:14px;line-height:1.4}.toolbar{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-bottom:22px}.toolbar h2{margin:0;font-size:23px}.toolbar .field{min-width:245px;margin:0}.chips{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0 22px}.chip{border:1px solid var(--line);background:#fff;padding:8px 13px;border-radius:99px;font-size:14px}.chip.active{background:var(--ink);color:#fff;border-color:var(--ink)}.list{display:grid;gap:16px}.item-card{border:1px solid var(--line);border-radius:12px;padding:22px;display:grid;grid-template-columns:96px 1fr auto;gap:22px;align-items:start;background:#fff}.item-icon{background:#e9ebf4;color:#444b98;border-radius:8px;width:96px;height:96px;display:grid;place-items:center;font-size:35px}.item-icon.practice{background:#e6eeec}.item-icon.video{background:#ebe8f4}.item-main h3{font-size:22px;line-height:1.28;margin:10px 0}.item-main p{color:var(--muted);margin:0 0 8px;font-size:15px}.item-main .meta{font-size:13px;color:var(--muted)}.item-actions{display:flex;flex-direction:column;align-items:flex-end;gap:10px;min-width:130px}.empty{background:var(--surface);border-radius:10px;padding:28px;color:var(--muted)}.detail-grid{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:42px}.detail h1{max-width:850px}.detail-copy h2,.aside h2,.split h2,.account h2{font-size:23px;line-height:1.25;margin:0 0 15px}.detail-copy p{color:#50586a}.detail-copy .abstract{font-size:18px;line-height:1.7;margin:24px 0}.aside{border:1px solid var(--line);border-radius:12px;padding:22px;align-self:start;background:var(--surface)}.aside dl{margin:0}.aside dt{font-size:12px;color:var(--muted);margin-top:18px}.aside dt:first-child{margin-top:0}.aside dd{margin:4px 0 0;font-size:15px}.locked-box,.demo-box,.notice{border-left:3px solid var(--accent);background:#f1f2fb;padding:18px 20px;border-radius:0 9px 9px 0;margin:26px 0}.locked-box p,.notice p{margin:5px 0 15px}.demo-box{font-size:14px;color:#4d5670}.demo-box p{margin:0}.video-placeholder{background:#303766;color:#fff;border-radius:12px;min-height:250px;display:grid;place-content:center;text-align:center;padding:20px;margin:24px 0}.video-placeholder b{font-size:25px}.video-placeholder p{color:#dce1ff}.split{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:38px}.form-card{border:1px solid var(--line);border-radius:12px;padding:26px;background:#fff}.form-card h2{font-size:25px}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 16px}.field.full{grid-column:1/-1}.form-notes{margin-top:18px;color:var(--muted);font-size:14px}.form-notes p{margin:8px 0}.form-error{color:#a52332;font-size:13px}.success{border:1px solid #b2d9bf;background:#f1faf3;padding:22px;border-radius:11px;margin:23px 0}.success h2{margin-top:0}.auth-layout{display:grid;grid-template-columns:minmax(0,590px) 1fr;gap:80px;align-items:start;margin-bottom:60px}.auth-aside{background:var(--surface);border:1px solid var(--line);padding:26px;border-radius:12px}.auth-aside h2{font-size:22px;margin:0 0 15px}.auth-aside p{font-size:15px;color:var(--muted)}.auth-aside ul{padding-left:21px}.auth-aside li{margin:9px 0}.account .overview{display:grid;grid-template-columns:1.35fr 1fr;gap:24px;margin:18px 0 30px}.surface{border:1px solid var(--line);border-radius:12px;padding:24px;background:#fff}.surface.shaded{background:var(--surface)}.surface p{color:var(--muted)}.surface h3{font-size:20px;margin:6px 0}.account-tabs{display:flex;flex-wrap:wrap;gap:8px;border-bottom:1px solid var(--line);margin:16px 0 26px}.account-tabs button{background:none;border:0;padding:12px 13px;color:var(--muted);border-bottom:3px solid transparent;font-size:15px}.account-tabs button.active{color:var(--accent);border-color:var(--accent);font-weight:700}.account-row{border-bottom:1px solid var(--line);padding:18px 0;display:flex;justify-content:space-between;align-items:center;gap:25px}.account-row:last-child{border-bottom:0}.account-row b{font-size:17px}.account-row p{margin:4px 0 0;font-size:14px;color:var(--muted)}.account-row .text-link{white-space:nowrap}.account-profile{max-width:580px}.account-profile .field{margin-bottom:16px}.section-top{display:flex;justify-content:space-between;align-items:baseline;gap:20px}.hide{display:none!important}footer{border-top:1px solid var(--line);background:#fff;margin-top:65px}.footer{display:flex;gap:20px;justify-content:space-between;align-items:flex-start;padding-block:30px;color:var(--muted);font-size:13px}.footer a{color:var(--accent)}.skip{position:absolute;left:16px;top:-80px;padding:12px;background:#fff;z-index:20}.skip:focus{top:10px}
@media(max-width:1050px){.site-nav{gap:11px}.site-nav a{font-size:13px}.head{gap:12px}.brand strong{font-size:16px}.detail-grid{grid-template-columns:minmax(0,1fr) 245px}}@media(max-width:790px){.site-nav{display:none;position:absolute;left:0;right:0;top:75px;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:12px 25px;box-shadow:0 13px 22px #171d3220}.site-nav.open{display:flex}.site-nav a{font-size:16px;padding:10px}.head{min-height:75px}.head-account{margin-left:auto}.menu-button{display:block}.shell,.detail-grid,.split,.auth-layout{grid-template-columns:1fr;gap:25px}.sidebar{display:grid;grid-template-columns:repeat(2,1fr);gap:0 15px}.sidebar h2{grid-column:1/-1}.account .overview{grid-template-columns:1fr}.auth-aside{order:-1}}
@media(max-width:580px){.wrap{padding-inline:16px}.proto .wrap{display:block}.proto span{display:block}.crumb{padding-block:17px}.page-head h1,.detail h1,.auth-head h1{font-size:32px}.lead{font-size:16px}.sidebar{grid-template-columns:1fr}.item-card{grid-template-columns:68px 1fr;gap:12px;padding:16px}.item-icon{height:68px;width:68px;font-size:25px}.item-main h3{font-size:18px}.item-actions{grid-column:1/-1;flex-direction:row;justify-content:space-between;align-items:center}.form-grid{grid-template-columns:1fr}.footer{flex-direction:column;gap:9px}.account-row{align-items:flex-start;flex-direction:column;gap:8px}.head-account{padding:8px 11px}.brand{font-size:12px}.brand strong{font-size:15px}.mark{width:35px;height:38px;font-size:21px}.account-tabs button{font-size:14px}.form-card{padding:20px}}